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- PDB-7mka: Structure of EC+EC (leading EC-focused) -

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Basic information

Entry
Database: PDB / ID: 7mka
TitleStructure of EC+EC (leading EC-focused)
Components
  • (DNA (40-MER)) x 2
  • (DNA-directed RNA polymerase ...) x 7
  • (DNA-directed RNA polymerases I, II, and III subunit ...) x 2
  • (DNA-directed RNA polymerases II subunit ...) x 2
  • DNA-directed RNA polymerases I,II,and III subunit RPABC2
  • RNA (5'-R(P*AP*AP*CP*UP*AP*GP*UP*UP*AP*AP*GP*AP*GP*GP*UP*U)-3')
KeywordsTRANSCRIPTION / pol II
Function / homology
Function and homology information


: / : / : / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / positive regulation of translational initiation / : / : / tRNA transcription by RNA polymerase III / RNA polymerase I complex ...: / : / : / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / positive regulation of translational initiation / : / : / tRNA transcription by RNA polymerase III / RNA polymerase I complex / RNA polymerase III complex / RNA polymerase II, core complex / transcription-coupled nucleotide-excision repair / translation initiation factor binding / transcription initiation at RNA polymerase II promoter / P-body / ribonucleoside binding / DNA-directed RNA polymerase activity / DNA-directed RNA polymerase / single-stranded DNA binding / nucleic acid binding / single-stranded RNA binding / protein dimerization activity / nucleotide binding / DNA-templated transcription / nucleolus / DNA binding / zinc ion binding / metal ion binding
Similarity search - Function
: / Gyrase A; domain 2 - #140 / RNA polymerase Rpb1, domain 3 / Enzyme I; Chain A, domain 2 / DNA-directed RNA polymerase II subunit Rpb4-like / RNA polymerase Rpb4/RPC9, core / DNA-directed RNA-polymerase II subunit / RNA polymerase Rpb1 C-terminal repeat / RNA polymerase II, heptapeptide repeat, eukaryotic / Eukaryotic RNA polymerase II heptapeptide repeat. ...: / Gyrase A; domain 2 - #140 / RNA polymerase Rpb1, domain 3 / Enzyme I; Chain A, domain 2 / DNA-directed RNA polymerase II subunit Rpb4-like / RNA polymerase Rpb4/RPC9, core / DNA-directed RNA-polymerase II subunit / RNA polymerase Rpb1 C-terminal repeat / RNA polymerase II, heptapeptide repeat, eukaryotic / Eukaryotic RNA polymerase II heptapeptide repeat. / RNA polymerase Rpb1, domain 6 / RNA polymerase Rpb1, domain 6 / RNA polymerase Rpb1, domain 7 / RNA polymerase Rpb1, domain 7 superfamily / RNA polymerase Rpb1, domain 7 / Pol II subunit B9, C-terminal zinc ribbon / RNA polymerase RBP11 / Rpb4/RPC9 superfamily / Gyrase A; domain 2 / RNA polymerase subunit Rpb4/RPC9 / RNA polymerase Rpb4 / Zinc finger TFIIS-type signature. / HRDC-like superfamily / RNA polymerase Rpb7-like , N-terminal / RNA polymerase Rpb7-like, N-terminal domain superfamily / RNA polymerase subunit Rpb7-like / SHS2 domain found in N terminus of Rpb7p/Rpc25p/MJ0397 / RNA polymerase Rpb2, domain 5 / RNA polymerase Rpb2, domain 5 / RNA polymerase Rpb2, domain 4 / RNA polymerase Rpb2, domain 4 / DNA-directed RNA polymerase, M/15kDa subunit / RNA polymerases M/15 Kd subunit / RNA polymerase subunit 9 / DNA-directed RNA polymerase M, 15kDa subunit, conserved site / RNA polymerases M / 15 Kd subunits signature. / DNA-directed RNA polymerase subunit/transcription factor S / RNA polymerase, Rpb8 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / RNA polymerase Rpb8 / RNA polymerase subunit 8 / RNA polymerase, Rpb5, N-terminal / RNA polymerase Rpb5, N-terminal domain superfamily / RNA polymerase Rpb5, N-terminal domain / DNA-directed RNA polymerase, subunit RPB6 / DNA-directed RNA polymerase subunit RPABC5/Rpb10 / RNA polymerases, subunit N, zinc binding site / RNA polymerase subunit RPB10 / RNA polymerases N / 8 kDa subunit / RNA polymerases N / 8 Kd subunits signature. / DNA directed RNA polymerase, 7 kDa subunit / RNA polymerase archaeal subunit P/eukaryotic subunit RPABC4 / RNA polymerase, subunit H/Rpb5, conserved site / RNA polymerases H / 23 Kd subunits signature. / RNA polymerase subunit CX / DNA-directed RNA polymerase, 30-40kDa subunit, conserved site / DNA-directed RNA polymerase subunit Rpo3/Rpb3/RPAC1 / RNA polymerases D / 30 to 40 Kd subunits signature. / DNA-directed RNA polymerase Rpb11, 13-16kDa subunit, conserved site / DNA-directed RNA polymerase subunit Rpo11 / RNA polymerases L / 13 to 16 Kd subunits signature. / DNA-directed RNA polymerase subunit Rpo5/Rpb5 / Zinc finger, TFIIS-type / Transcription factor S-II (TFIIS) / Zinc finger TFIIS-type profile. / C2C2 Zinc finger / RNA polymerase subunit RPABC4/transcription elongation factor Spt4 / DNA-directed RNA polymerase, RBP11-like dimerisation domain / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerase, subunit H/Rpb5 C-terminal / RPB5-like RNA polymerase subunit superfamily / RNA polymerase Rpb5, C-terminal domain / Archaeal Rpo6/eukaryotic RPB6 RNA polymerase subunit / DNA-directed RNA polymerase, 14-18kDa subunit, conserved site / RNA polymerases K / 14 to 18 Kd subunits signature. / Ribosomal protein S1-like RNA-binding domain / S1 RNA binding domain / S1 domain / RNA polymerase Rpb6 / RNA polymerase, subunit omega/Rpo6/RPB6 / RNA polymerase Rpb6 / RNA polymerase Rpb1, domain 3 superfamily / RPB6/omega subunit-like superfamily / RNA polymerase Rpb2, domain 2 superfamily / DNA-directed RNA polymerase, insert domain / DNA-directed RNA polymerase, RpoA/D/Rpb3-type / RNA polymerase Rpb3/RpoA insert domain / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerases D / RNA polymerase Rpb1, clamp domain superfamily / RNA polymerase Rpb1, domain 3 / RNA polymerase Rpb1, domain 3 / DNA-directed RNA polymerase, subunit beta-prime / RNA polymerase Rpb1, domain 1 / RNA polymerase Rpb1, domain 1 / RNA polymerase, beta subunit, protrusion / RNA polymerase beta subunit / RNA polymerase, alpha subunit / RNA polymerase Rpb1, domain 5 / RNA polymerase Rpb1, domain 4
Similarity search - Domain/homology
DNA / DNA (> 10) / RNA / RNA (> 10) / RPB4 isoform 1 / RPC10 isoform 1 / RPB3 isoform 1 / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC1 ...DNA / DNA (> 10) / RNA / RNA (> 10) / RPB4 isoform 1 / RPC10 isoform 1 / RPB3 isoform 1 / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / DNA-directed RNA polymerase subunit beta / RPB11 isoform 1 / RPB10 isoform 1 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerase subunit
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.54 Å
AuthorsYang, C. / Murakami, K.
Funding support1items
OrganizationGrant numberCountry
Not funded
CitationJournal: Mol Cell / Year: 2022
Title: Structural visualization of de novo transcription initiation by Saccharomyces cerevisiae RNA polymerase II.
Authors: Chun Yang / Rina Fujiwara / Hee Jong Kim / Pratik Basnet / Yunye Zhu / Jose J Gorbea Colón / Stefan Steimle / Benjamin A Garcia / Craig D Kaplan / Kenji Murakami /
Abstract: Previous structural studies of the initiation-elongation transition of RNA polymerase II (pol II) transcription have relied on the use of synthetic oligonucleotides, often artificially discontinuous ...Previous structural studies of the initiation-elongation transition of RNA polymerase II (pol II) transcription have relied on the use of synthetic oligonucleotides, often artificially discontinuous to capture pol II in the initiating state. Here, we report multiple structures of initiation complexes converted de novo from a 33-subunit yeast pre-initiation complex (PIC) through catalytic activities and subsequently stalled at different template positions. We determine that PICs in the initially transcribing complex (ITC) can synthesize a transcript of ∼26 nucleotides before transitioning to an elongation complex (EC) as determined by the loss of general transcription factors (GTFs). Unexpectedly, transition to an EC was greatly accelerated when an ITC encountered a downstream EC stalled at promoter proximal regions and resulted in a collided head-to-end dimeric EC complex. Our structural analysis reveals a dynamic state of TFIIH, the largest of GTFs, in PIC/ITC with distinct functional consequences at multiple steps on the pathway to elongation.
History
DepositionApr 22, 2021Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 27, 2022Provider: repository / Type: Initial release
Revision 1.1May 18, 2022Group: Database references / Structure summary / Category: audit_author / citation_author / Item: _audit_author.name / _citation_author.name
Revision 1.2May 17, 2023Group: Database references / Refinement description
Category: citation / citation_author / pdbx_initial_refinement_model
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.3Oct 30, 2024Group: Data collection / Refinement description / Structure summary
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / em_3d_fitting_list / em_admin / pdbx_entry_details / pdbx_modification_feature
Item: _em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id ..._em_3d_fitting_list.accession_code / _em_3d_fitting_list.initial_refinement_model_id / _em_3d_fitting_list.source_name / _em_3d_fitting_list.type / _em_admin.last_update / _pdbx_entry_details.has_protein_modification

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
N: DNA (40-MER)
O: DNA (40-MER)
a: DNA-directed RNA polymerase subunit
b: DNA-directed RNA polymerase subunit beta
c: DNA-directed RNA polymerase II subunit RPB3
d: DNA-directed RNA polymerase II subunit RPB4
e: DNA-directed RNA polymerases I, II, and III subunit RPABC1
f: DNA-directed RNA polymerases I,II,and III subunit RPABC2
g: DNA-directed RNA polymerase II subunit RPB7
h: DNA-directed RNA polymerases I, II, and III subunit RPABC3
i: DNA-directed RNA polymerase II subunit RPB9
j: DNA-directed RNA polymerases II subunit RPABC5
k: DNA-directed RNA polymerase II subunit RPB11
l: DNA-directed RNA polymerases II subunit RPABC4
r: RNA (5'-R(P*AP*AP*CP*UP*AP*GP*UP*UP*AP*AP*GP*AP*GP*GP*UP*U)-3')
hetero molecules


Theoretical massNumber of molelcules
Total (without water)544,04025
Polymers543,46815
Non-polymers57210
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: cross-linking
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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DNA chain , 2 types, 2 molecules NO

#1: DNA chain DNA (40-MER)


Mass: 11967.762 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Saccharomyces cerevisiae (brewer's yeast)
#2: DNA chain DNA (40-MER)


Mass: 12338.932 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Saccharomyces cerevisiae (brewer's yeast)

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DNA-directed RNA polymerase ... , 7 types, 7 molecules abcdgik

#3: Protein DNA-directed RNA polymerase subunit


Mass: 191821.578 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast)
References: UniProt: A0A6A5Q1P2, DNA-directed RNA polymerase
#4: Protein DNA-directed RNA polymerase subunit beta


Mass: 138937.297 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast)
References: UniProt: A0A6A5Q4H2, DNA-directed RNA polymerase
#5: Protein DNA-directed RNA polymerase II subunit RPB3


Mass: 35330.457 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6A5Q0Z3
#6: Protein DNA-directed RNA polymerase II subunit RPB4


Mass: 25451.191 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6A5PTI6
#9: Protein DNA-directed RNA polymerase II subunit RPB7


Mass: 19081.053 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6A5Q270
#11: Protein DNA-directed RNA polymerase II subunit RPB9


Mass: 14308.161 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A7I9EWC2
#13: Protein DNA-directed RNA polymerase II subunit RPB11


Mass: 13633.493 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6A5Q7A1

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DNA-directed RNA polymerases I, II, and III subunit ... , 2 types, 2 molecules eh

#7: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC1


Mass: 25117.094 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6A5Q456
#10: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC3


Mass: 16525.363 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6A5Q8C2

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DNA-directed RNA polymerases II subunit ... , 2 types, 2 molecules jl

#12: Protein DNA-directed RNA polymerases II subunit RPABC5


Mass: 8290.732 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6A5Q7Q6
#14: Protein DNA-directed RNA polymerases II subunit RPABC4


Mass: 7729.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6A5PY05

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Protein / RNA chain , 2 types, 2 molecules fr

#15: RNA chain RNA (5'-R(P*AP*AP*CP*UP*AP*GP*UP*UP*AP*AP*GP*AP*GP*GP*UP*U)-3')


Mass: 5003.015 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Saccharomyces cerevisiae (brewer's yeast)
#8: Protein DNA-directed RNA polymerases I,II,and III subunit RPABC2


Mass: 17931.834 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: A0A6L0ZRI7

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Non-polymers , 2 types, 10 molecules

#16: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: Zn
#17: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Mg

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Details

Has ligand of interestN
Has protein modificationY

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: The leading EC of complex EC+EC / Type: COMPLEX
Details: bona fide transcription complex, which was generated from in vitro transcription system using isolated proteins from yeast, was achieved via glycerol gradient sedimentation
Entity ID: #1-#15 / Source: NATURAL
Molecular weightValue: 0.5 MDa / Experimental value: YES
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Buffer solutionpH: 7.6 / Details: 20 mM HEPES PH 7.6 50 mM KoAc 5 mM DTT 2 mM MgoAc
SpecimenConc.: 1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: LEICA EM CPC / Cryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Nominal magnification: 81000 X / Nominal defocus max: 1750 nm / Nominal defocus min: 750 nm / Cs: 2.7 mm / C2 aperture diameter: 100 µm
Image recordingElectron dose: 1.25 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM software
IDNameVersionCategoryDetails
4CTFFIND4.1.13CTF correction
7UCSF Chimeramodel fitting
9RELIONinitial Euler assignment
10RELIONfinal Euler assignment
12RELION3D reconstructionpostprocessing
13PHENIXmodel refinement
14Cootmodel refinement
CTF correctionType: NONE
Particle selectionNum. of particles selected: 2565746
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.54 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 57690 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT / Space: REAL
Atomic model building
IDPDB-ID 3D fitting-IDAccession codeInitial refinement model-IDSource nameType
15C4J

5c4j

15C4J1PDBexperimental model
26GML

6gml

16GML2PDBexperimental model
33PO2

3po2

13PO23PDBexperimental model

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